Flow-network based dynamic modelling and simulation of the temperature control system for commercial aircraft with multiple temperature zones

Duan, Zhongdi; Sun, Haoran; Wu, Chengyun; Hu, Haitao

doi:10.1016/j.energy.2021.121874

Cited by 9 publications

(2 citation statements)

References 30 publications

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“…A complex system, for instance, control system [1], servo system [2], energy storage system [3], is widely used in aviation, aerospace, electronics and other fields. Due to the complex structure and poor working environment, the system performance can be degraded, which affects the operation reliability of the system.…”

Section: Introductionmentioning

confidence: 99%

Health Assessment of Complex System Based on Evidential Reasoning Rule with Transformation Matrix

Zhou

Wang

et al. 2022

Machines

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In current research of complex system health assessment with evidential reasoning (ER) rule, the relationship between the indicators reference grades and pre-defined assessment result grades is regarded as a one to one correspondence. However, in engineering practice, this strict mapping relationship is difficult to meet, and it may degrease the accuracy of the assessment. Therefore, a new ER rule-based health assessment model for a complex system with a transformation matrix is adopted. First, on the basis of the rule-based transformation technique, expert knowledge is embedded on the transformation matrix to solve the inconsistent problems between the input and the output, which keeps completeness and consistency of information transformation. Second, a complete health assessment model is established via the calculation and optimization of the model parameters. Finally, the effectiveness of the proposed model can be validated in contrast with other methods.

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Section: Introductionmentioning

confidence: 99%

Health Assessment of Complex System Based on Evidential Reasoning Rule with Transformation Matrix

Zhou

Wang

et al. 2022

Machines

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“…The air distribution system supplies fresh air with adjusted parameters to the cabin and takes away the thermal load generated by electronic equipment and personnel, to ensure the temperature, humidity, and wind velocity in a comfortable range for the high passenger density cabin environment of the aircraft [1,2]. The air distribution system is generally composed of multiple subsystems according to the main branch at the outlet of the mix manifold, which supply the air with the required mass flow rate to each cabin area.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Air Distribution System for a Passenger Aircraft Based on 1D and 3D Coupling

Chen

Wang

et al. 2022

International Journal of Aerospace Engineering

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The air distribution system is one of the key systems for ensuring the safety and comfort of the passenger aircraft. The large number of components poses a severe challenge to the efficiency, accuracy, and convergence of system simulation. For the 3D CFD method, the complex and large number of meshes leads to low computational efficiency. The 1D simulation has high efficiency, but the local accuracy is inadequate. To solve this problem, the 1D Fluid System Simulation Software Flomaster with the linearization algorithm is used to establish the system-level model. The flow characteristic curve is obtained by the CFD (computational fluid dynamics) method for the local irregular ducts and introduced into the 1D system model for iteration. The effects of local flow resistance and thermal insulation on the flow distribution and thermal performance of the system are studied using this simulation model. The results show that the local flow resistance affects the total flow and uniformity of the cabin distribution, the improvement of insulation performance is weakened with increasing insulation layer thickness, and the application of thicker insulation layers on the downstream pipeline is more advantageous to limit the maximum temperature change of the conditioned air.

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A pressure-node based dynamic model for simulation and control of aircraft air-conditioning systems

Sun

Duan

Wang

et al. 2023

Energy

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Flow-network based dynamic modelling and simulation of the temperature control system for commercial aircraft with multiple temperature zones

Cited by 9 publications

References 30 publications

Health Assessment of Complex System Based on Evidential Reasoning Rule with Transformation Matrix

Health Assessment of Complex System Based on Evidential Reasoning Rule with Transformation Matrix

Numerical Study of Air Distribution System for a Passenger Aircraft Based on 1D and 3D Coupling

A pressure-node based dynamic model for simulation and control of aircraft air-conditioning systems

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